2005 Cadillac Deville electrical system problems
34 owner complaints filed with NHTSA name the electrical system on the 2005 Cadillac Deville — 36% of all complaints for this model year.
What owners report
“My a/c runs at will. Off and on by itself. Running, stationary, and in motion. My headlights come on when I put the car in drive ever though they are turned off. My alternator was replaced and the battery and all checked out fine at two local parts /battery stores july 18th 2017. Both were replaced…”
filed Jul 19, 2017
“Tl* the contact owns a 2005 cadillac deville. While driving 25 mph, the vehicle stalled without warning. The vehicle was able to restart after numerous attempts. The failure recurred and the vehicle failed to restart. The contact stated that there were no failures prior to the dealer repairing the…”
filed Mar 22, 2017
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- In the affected vehicles, the weight on the key ring and road conditions or some other…Campaign 14V355000 · Jun 23, 2014
Related service bulletins
This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
23-NA-001 · Service Bulletin/Repair Instructions · issued Mar 28, 2025This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8…
PIP4723J · Service Bulletin/Repair Instructions · issued Oct 25, 2024
Electrical System problems in other Deville years
| Year | Reports | Share |
|---|---|---|
| 2004 Deville | 47 | 28% |
| 2003 Deville | 51 | 35% |
| 2002 Deville | 45 | 26% |
| 2001 Deville | 45 | 26% |
| 2000 Deville | 60 | 27% |
| 1999 Deville | 20 | 11% |
| 1998 Deville | 21 | 9% |
| 1997 Deville | 28 | 10% |
| 1996 Deville | 17 | 8% |
| 1995 Deville | 20 | 16% |
| 1994 Deville | 15 | 12% |
| 1993 Deville | 11 | 12% |
Other reported problem areas on the 2005 Cadillac Deville
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.